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how do I recover sound effects on duolingo? they work on safari, but no longer work on firefox.

I've used duolingo via firefox for months. Today the sound effects stopped working. They work fine on Safari. Firefox is my preferred browser, but I'll switch if I have t… (read more)

I've used duolingo via firefox for months. Today the sound effects stopped working. They work fine on Safari. Firefox is my preferred browser, but I'll switch if I have to. Thanks

Asked by starrboogie 5 years ago

Answered by guigs 5 years ago

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Videos go slow after pausing em for a while

Yes hello, as the title says some videos go slow after i pause em to look on something else, specifically in a site called animeplus.tv i watch the videos there, then i p… (read more)

Yes hello, as the title says some videos go slow after i pause em to look on something else, specifically in a site called animeplus.tv i watch the videos there, then i pause em for a bit to check for something else, or another video in another site or well whichever reason, the thing is when i return to this video and resume playing it, it gets very slow playback, the audio is fine, but the video itself is not working properly, so far i just seen this issue happen in that website but perhaps is the flash player? i dunno i removed a addon that i though could be the issue but is not. and when i try this on Google Chrome, it works fine, i pause the video check for other stuff, and the video still plays like normal. so i am hoping for some ideas in what to do cause i do like Firefox and i do not want to transfer over to another browser.

Asked by Slyver1080 5 years ago

Answered by guigs 5 years ago

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No 4K resulution on youtube

Some videos on youtube don't show the 4k resolution option under firefox and the only go up to 1080P but on chrome they show all the resolutions: example video https://yo… (read more)

Some videos on youtube don't show the 4k resolution option under firefox and the only go up to 1080P but on chrome they show all the resolutions:

example video https://youtu.be/WU-NrfB8Kd4

I have flash installed as well

Asked by Levan7 4 years ago

Answered by jscher2000 4 years ago

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Video frames do not scale properly

In Firefox video frames don't scale properly. This affects both HTML5 videos e.g. youtube.com and Flash videos e.g. twitch.tv. When switching to Cinema view in youtube, o… (read more)

In Firefox video frames don't scale properly. This affects both HTML5 videos e.g. youtube.com and Flash videos e.g. twitch.tv. When switching to Cinema view in youtube, or closing the side panels in twitch, the frame will extend to the left and right, leaving black bars at the side, but the video does not scale and the frame does not increase in height. I don't have the issue in Safe Mode and also not in Chrome. However I still have the issue in Firefox with all extensions disabled. I tried to delete cookies, cache and refresh Firefox, but the issue still exists. I also tried to disable Hardware acceleration in both the Flash Player and Firefox, but that also does not solve the issue.

Asked by MannimStein 4 years ago

Answered by jscher2000 4 years ago

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make vlc plugin default player for youtube videos

hi is it possible to do so ? i still having high load and memory usage from youtube only videos, i would like to vlc be the default media player in youtube thanks in adva… (read more)

hi is it possible to do so ? i still having high load and memory usage from youtube only videos, i would like to vlc be the default media player in youtube thanks in advance

Asked by Simoorish 4 years ago

Answered by cor-el 4 years ago

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why when download a clip it is not clear, some of the writing it is not clear how can a fix this?? Thank you so much for your time and your Help on this matter.

Playing video I just downloaded in my VLC it shows not clear enough to read the Instructions, How can I make it clear to be able to read the Instructions?? Thank you so m… (read more)

Playing video I just downloaded in my VLC it shows not clear enough to read the Instructions, How can I make it clear to be able to read the Instructions?? Thank you so much for your time and your Help.

Asked by Max8137 4 years ago

Answered by FredMcD 4 years ago

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Firefox 49 error "This browser does not support video playback" playing mp4 videos in Twitter in Win 8.1 with Flash Player 23.0.0.162

About a month and a half ago MP4 videos in Twitter 29 played fine. Then I updated to the latest version of Adobe Flash player on both my Win 8.1 and old XP computers. Tha… (read more)

About a month and a half ago MP4 videos in Twitter 29 played fine. Then I updated to the latest version of Adobe Flash player on both my Win 8.1 and old XP computers. That is when I started getting "This browser does not support video playback" error when trying to play a mp4 video in Twitter. I ran Firefox in Safemode ... no change. I removed all addons ... no change. All Plugins are Ask to Activate or Always Activated. I uninstalled Firefox and Flash player and reinstalled .. no change. The videos work fine in MS IE II and Chrome 53.0.2785.116 m. H264 Codec is installed. YouTube videos play fine.

Asked by 1artworkz 3 years ago

Answered by 1artworkz 3 years ago

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Some Videos will not play in firefox but play fine in IE

I am running Windows 7 64 bit and Firefox is my browser. All of a sudden I can not play videos at places like Democracy Now and many other web sites (E.G. Malcolm Gladwel… (read more)

I am running Windows 7 64 bit and Firefox is my browser. All of a sudden I can not play videos at places like Democracy Now and many other web sites (E.G. Malcolm Gladwell) but most of Youtube is okay - except sometimes. I thought this may have been due adGuard but disengaging it or starting FF clean with no ad ons has no effect.

I was just informed by Costco Concierge Services that the reason is that both FireFox and Google Chrome have decided to “no longer support” certain add ons or plug ins (what is the difference if any between these tech terms of art?) and therefore if I can not play a video I will have to use Internet Explorer. Discovering what videos I can or can not use is a hit an miss case by case basis.

So, first is this true? I can not imagine Firefox or Google Chrome making a change that would actually require its users of many years to bump their prime product and, instead, turn to its prime competitors. That seems like suicidal sabotage. We are just every day end-users and not software engineers and the explanations I find are absolutely incomprehensible technobabble.

In plain English what is the real problem? What is the fix? And has Firefox actually decided to make us dump Firefox and turn to its competitor just to watch certain videos? Has Democracy Now decided to continue using a video format that is no longer supported by FF?

The attached pic is just and example. DN uses jW player but I find this problem at other web sites too.

Asked by LostInThisMaze 3 years ago

Answered by Moses 3 years ago

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How can I stop videos from automatically starting (autoplay)?

Every web page with video / audio content begins to autoplay (at the vid's highest volume) approximately 5 seconds after opening the page. I could disable this in Safari … (read more)

Every web page with video / audio content begins to autoplay (at the vid's highest volume) approximately 5 seconds after opening the page. I could disable this in Safari and Chromium, but see no option to disable the 'Autoplay' feature in Firefox. Worse, there are no plug-ins or extensions available that will allow this to be done. If you have had success disabling this annoying 'feature' (it's not a 'bug,' right?), please advise how it was done so that I may rid myself of these annoying vids. Thanks in advance.

Asked by Dr_Know 3 years ago

Answered by FredMcD 3 years ago

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Firefox v 55.0 crashes my tabs upon loading a video

Alright, so first the story, then the specifics. Story: I updated to Firefox 55.0 a few weeks ago, presumably when it came out, as I had auto-updates enabled. Immediately… (read more)

Alright, so first the story, then the specifics.

Story: I updated to Firefox 55.0 a few weeks ago, presumably when it came out, as I had auto-updates enabled. Immediately after doing so, the large majority of videos would crash my tab. I'd get what I can only assume is the standard message of "Gah, My tab crashed!" etc. Anyways, I did some digging around, these forums and others, none of the solutions worked. I settled for the quick n dirty solution, and rolled back to firefox 54.0, which worked fine. Until today. Today, 54.0 was experiencing the issue as well, so I naturally decided to try 55.0 - which didn't work either. That leaves me where I'm at now.

Specific details: Tabs crash upon trying to load a video, presumably of a different format. It crashes occasionally on youtube videos, but is for the most part OK with them. Scrolling through a facebook feed however, will give you videos from lots of different sources, and I can reliably crash my tab within 10s if I load up facebook and just scroll down.

Potential fixes I have tried (of which, none solved my issue):

  • Going into About:config and changing the browser.tabs.autorestart and browser.tabs.autorestart2 both to be false. This is following the recommendation of another thread, given to a different user with a similar problem, found here: ( https://support.mozilla.org/en-US/questions/1159697 ).
  • Booting the browser up into safe mode
  • Updating any/all drivers. Specifically I can for sure, without a doubt, say that my gfx card drivers are up to date.
  • Creating a new firefox profile, and using it instead.

At this point the only thing that comes to mind is the idea that the plugin loading these videos isn't working correctly? But is it even a plugin?

Worth noting, if I change the about:config file pieces I listed above to both be false, instead of crashing a tab it will crash the entire browser. A crash report of that specific incident can be found using bp-92e3bbb7-9388-4412-9573-504010170905 .

The normal issue happening can be found using bp-a8e33356-c344-4159-889b-b330a0170905 .

Thank you for any/all help you can provide.

Asked by Juicearific 2 years ago

Answered by FredMcD 2 years ago

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can't play videos without restarting computer

I have a MacBook Pro (Retina, 13-inch, Early 2015) with firefox as my browser. I"m having a problem with playing videos and have tried to use firefox help lists to no ava… (read more)

I have a MacBook Pro (Retina, 13-inch, Early 2015) with firefox as my browser. I"m having a problem with playing videos and have tried to use firefox help lists to no avail. If I force quit the browser and then reload it I can play about 5-6 videos but after that it just buffers and tells me to restart my computer. I have removed adobe flash player and reinstalled it. I have removed the ad blocker I had on the computer and didn't re-install it. I have tried other things that are on the internet, nothing works. Any suggestions... please

Asked by jgrainger 2 years ago

Answered by cor-el 2 years ago

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Youtube, Facebook and other embedded videos never load (FF 58.0.2)

I am unable to watch videos in Firefox since the last update. There is a spinning wheel and it never finishes loading. Since I reinstalled FF, there are no external plugi… (read more)

I am unable to watch videos in Firefox since the last update. There is a spinning wheel and it never finishes loading. Since I reinstalled FF, there are no external plugings. Tried re-install, restart, nothing worked. They do play properly in Chrome.

Asked by leonardoauc 2 years ago

Answered by FredMcD 2 years ago

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Firefox doesn't drop videocard usage after closing youtube

Hello. So, as the question says, Firefox doesn't drop GPU usage and GPU core frequency (but it drops GPU memory frequency). I tried the other browsers (Chrome, Opera, Edg… (read more)

Hello. So, as the question says, Firefox doesn't drop GPU usage and GPU core frequency (but it drops GPU memory frequency). I tried the other browsers (Chrome, Opera, Edge) and it's fine. I have AMD RX560 graphic card with the latest drivers and I also tried previous versions

Asked by giindur 2 years ago

Answered by giindur 2 years ago

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The option to open a mp4 file with Firefox is no longer available since changed to 64 bit, how to fix

I have installed the 64bit Firefox, removing the prior Firefox program. Now, when I click on a mp4 and choose to open with, browsing to Program Files/Mozilla Firefox/Fire… (read more)

I have installed the 64bit Firefox, removing the prior Firefox program. Now, when I click on a mp4 and choose to open with, browsing to Program Files/Mozilla Firefox/Firefox.exe and clicking does nothing even when set as 'default' opening program. Am I to have the 32 bit installed into program files x86 or is there something else I need to do? Before when Firefox was installed, it was under program files x86, then the change to Quantum, (ran fine, I could use to view mp4 files), a computer crash with 'Cannot repair member file [l:30{15}]"mozilla.browser"', a new install with change folder 'old firefox', removed prior install of Firefox (one with older install date), now have issue that can't use to open mp4 file from computer.

Asked by Philip 2 years ago

Answered by Philip 2 years ago

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Firefox is freezing during flash videos, from anywebsite youtube or whatever, I dont know what to do..

Happened a few days ago, every time I play a flash video on my Firefox only! chrome and explorer works fine , the image freezes I need to start clicking around and all my… (read more)

Happened a few days ago, every time I play a flash video on my Firefox only! chrome and explorer works fine , the image freezes I need to start clicking around and all my icons turn black and it returns to normal and then freezes again, what the hell? this is my favorite browser and I don't want to move to chrome, so please help :(

Asked by Witemin 2 years ago

Answered by cor-el 2 years ago

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Microsoft Edge streams TV shows very fast just like firefox used to. I asked why but no response from firefox so goodbye firefox after many loyal years

Firefox will no longer stream a TV show or keep up even with a 100m internet connection. I messed with it's settings for many hours and asked the community but no respons… (read more)

Firefox will no longer stream a TV show or keep up even with a 100m internet connection. I messed with it's settings for many hours and asked the community but no response so I tried out Edge which is Unbelievably Fast and can open multiple tabs and stream each show on each tab to completion and even watch them with no internet just like firefox used to be. I was loyal firefox user for many years but no more.

Asked by bradb53 2 years ago

Answered by bradb53 2 years ago

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Firefox fails to load YouTube videos on refresh/re-visit

First attempt to play a video plays instantly, but clicking any video I've viewed since a cache clear or if I refresh the page, the videos load shifted to the right (no s… (read more)

First attempt to play a video plays instantly, but clicking any video I've viewed since a cache clear or if I refresh the page, the videos load shifted to the right (no sidebar video list). After a second, the sidebar loads in pushing the video to the 'normal' position, and as soon as this happens the video--that has played around 1 second--fails.

I have disabled all addons, refreshed firefox, disabled HW accel. Starting Firefox in safemode completely breaks it and I can't even navigate to a page, let alone test YouTube. I've reinstalled only 2 of the addons I had before since they're clearly not the issue.

Win10 1803, Firefox Quantum 61, Nvidia GTX 1080ti (driver WHQL 398.36)

Asked by wildcardNS 2 years ago

Answered by Shadow110 2 years ago

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Frame skipping on any audio or video

I've recently built a desktop PC with this configuration: Ryzen 7 1800X Geforce GTX 750 Ti (driver version: 399.07) 16GB DDR4 RAM 250GB SSD + a HDD for data only, no sys… (read more)

I've recently built a desktop PC with this configuration:

Ryzen 7 1800X

Geforce GTX 750 Ti (driver version: 399.07)

16GB DDR4 RAM

250GB SSD + a HDD for data only, no system files

Windows 10 64bit

External Sound card Scarlett 2i4 1st gen. [it worked fine with my old Windows7 desktop]


Any audio (soundcloud, zophar.net/music) or video (youtube, twitch, facebook) stream has the same problem: it randomly skips frames. I mean that video nor audio are interrupted, they continue, but they skip some "frames".

This bug occurs with the current official version, the current beta version and the current Nightly.

This bug does not occur on my laptop, windows 8 running an i5 CPU and no dedicated GPU.

This bug does not occur on other apps. I've tried: VLC, Facebook app, Twitch app, Microsoft Edge, Internet Explorer, Winamp.

Asked by DeRobyJ 1 year ago

Answered by DeRobyJ 1 year ago